The function is working. I am actually counting two events
{=SUM(('Master logK:K<>"")*('Master logD:D="HJT"))}
and
{=SUM(('Master logL:L<>"")*('Master logD:D="HJT"))}
Both counts are mutually exclusive. however a few events are there in both K & L, I don't want the count of the first to be included in The second as well.
And yes I am using excel 2007
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